CNC Plastic Parts

‌Precision Engineering for Lightweight & Cost-Effective Solutions‌

From ‌POM‌ to ‌ABS‌, our CNC-machined plastic parts deliver ‌±0.05mm tolerances‌ and ‌Ra≤1.6μm surface finishes‌, ideal forMedical equipment, electronic enclosures and instruments. With material options like ‌PTFE‌ for corrosion resistanceand ‌PC‌ for impact resistance, we ensure performance meets,meet strict industry standards.

Our goal is to become your true partner in the field of CNC plastic parts in China. Xi 'a Hi-Precision Machinery Co., Ltd has over 15 Years of experience in precision CNC machining. We provide high-quality global manufacturing solutions and one-stop supply chain management solutions. We have a skilled engineering team dedicated to refining every stage, from product development and process improvement to production oversight, ensuring every product delivered meets rigorous quality and performance standards. The price is competitive and the product is quality-assured, which is a good choice for your long-term cooperation.

CNC Turning POM Bushing
Model name: CNC turning POM bushing
Application: Automobiles, electronic appliances, medical equipment, plumbing and sanitary ware, etc.
Material: polyoxymethylene（POM）...
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POM CNC Milling Plates
Model name: POM CNC Milling Plates
Application: Machinery, automobiles, electronic appliances, etc.
Material: POM
Process: CNC Mill machining
Minimum Order...
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CNC Machining Pom Polyoxymethylene Parts
Model name: CNC Machining Pom Polyoxymethylene Partsr
Application: Interior buckles, gears, bearing sleeves, guide rail sliders, sealing rings, cams, etc.
Material: plastic...
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Teflon CNC Machining
Model name :Teflon CNC machining
Application: All industries
Material: ptfe (polytetrafluoroethylene).
Surface Finished:white and black
Process: CNC Turning,...
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Delrin CNC Machining
Model name: delrin CNC machining
Application: All industries
Material: Polyoxymethylene( pom)
Surface Finished: Sanding, polishing, painting, etc.
Process: CNC...
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Acetal CNC Machining
Model name: Acetal cnc machining
Application: Medical, electronics, Instrument
Material: POM (Polyoxymethylene）
Surface Finished: White and Black
Process: CNC...
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CNC Plastic Prototype
Model name: CNC plastic prototype
Application: Instrument, mechanical equipment,etc
Material: POM,PE,ABS,PP,etc.
Surface Finished: White and Black, etc....
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Custom Precision CNC Machined Plastic Parts
Model name: Custom precision cnc machined plastic parts
Application: Medical equipment, mechanical equipment,etc
Material: POM,PE,ABS,PP,etc.
Surface Finished:Machined...
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Why Choose Us

Our team: Our company has 6 senior CNC programming engineers, 4 design engineers, and 2 quality engineers.

Our equipment: We currently have 24 CNC four-axis, five-axis, and vertical machining centers, drilling and milling, drilling and tapping, and fine engraving and milling, 12 precision CNC turning and milling composites (with automatic feeding systems), 4 precision CNC tool-feeding lathes, including two Longze LA-250, two Baoji CK50, two SK50P, one Taiwan Liwei T6, and various types of CNC lathes.

Our certification: The company has passed the national environmental impact assessment and project certification, GJB 9001C-2017 (national military standard), GB/T 19001-2016/ISO 9001:2015 (national standard) quality management system certification.

Our services: In the pre-sales stage, our team of experts will recommend the most suitable products according to the needs of customers and provide detailed technical consultation. During the sales period, we ensure timely delivery and provide installation guidance. For after-sales, we provide long-term technical support, warranty services and spare parts to help customers maximize the use of products and get reliable maintenance during use.

Advantages of CNC Plastic Parts

Reduced human error and consistency

One of the key features of our cnc machining solutions is our automation, which reduces the reliance on manual labor and eliminates the risk of human error.

Precision redefined

Cnc machining is synonymous with precision. The nature of the manufacturing process allows for incredibly tight tolerances and unrivaled accuracy. Our multi axis machining capabilities allow us to produce sophisticated parts that might otherwise be challenging or impossible to achieve.

Cost-effective production

The efficiency of our manufacturing process, along with minimized material wastage and reduced labor costs, gets passed along to you in cost savings.

Versatility in material selection

Cnc machining for plastic parts accommodates a wide range of materials. Whether your project calls for abs, acrylic, peek, or nylon our machines can handle it.

Parts with smoother finishes

The precision and control provided by our cnc machines contribute to far smoother finishes when compared to many traditional machining methods.

Product Parameters of CNC Plastic Parts

Our service	Communication, Aerospace, Optical instrument, Medical and pharmaceutical, Oil, gas and petroleum, Railway, electric tool, robot, hydraulic equipment, industrial equipment etc...
Machine Equipment	CNC Machining Center, CNC Lathes, CNC Milling Machines, wire cutting, laser cutting. Stamping machines , Assembly lines, Whole set of measurement tools, Vernier caliper, projector, profiler, three coordinates.
Precision Processing	CNC machining, CNC milling and turning, laser cutting, drilling, grinding, bending, stamping, welding and so on.
Drawing format	JPEG,PDF,DWG,DXF,IGS,STEP.CAD or according to your sample.
Material Available	Plastic.
Tolerance	+/- 0.002--0.5mm / can also be customized.
Inspection	100% inspection before shipping.

Features of CNC Plastic Parts

Lightweight

Plastics are generally lightweight, with the heaviest plastic, PTFE (Polytetrafluoroethylene), having a density of only 2.2 g/cm³. This property makes them ideal for applications where low weight is essential for part functionality and efficiency.

Elasticity

Most plastics can return to their original shape after deformation. This property varies by plastic type and is very high in elastomers. It allows plastic parts to bend, undergo stress, and deform without breaking.

Custom Precision CNC Machined Plastic Parts

Corrosion and chemical resistance

Plastics are resistant to various chemicals, making them ideal for parts in harsh chemical environments. However, this resistance varies between different plastic types, so using the right plastic type for the specific chemical is essential. Furthermore, plastics do not rust or corrode, as these are chemical processes exclusive to metals.

Wear and tear resistance

Many plastics are wear and tear-resistant, making them suitable for applications where durability is crucial. Certain plastics, like Nylon (PA), Delrin (POM), and Polyethylene, are known for their excellent wear resistance, low friction, and ability to withstand repeated mechanical stress.

Application of CNC Plastic Parts

Medical industry

The need for the production of surgical tools, severe prosthetics, medical tools, and so on is transcended with the use of plastic machining. The methods also guarantee safety compliance with stringent requirements while being able to produce engraved detailing.

Automotive components

You can machine plastic parts such as dashboards and air holes through computer numerical control. As a result, it decreases the weight of an automobile’s body and improves the performance of machined parts.

Aerospace parts

Prototypes, interiors, and components of the structure that are heat resistant and not heavy so in regards to aeronautics plastic is the material used. This process is crucial as details cnc machined plastics through these methods are under enormous stress and require utmost accuracy.

Electronic industry

Within electronics, machined plastic components are used like connectors, casings, and keypads. Over-molding connectors together with plastic enhances the insulation and sturdiness of delicate systems.

Processing Methods of CNC Plastic Parts

Cutting and sawing: Cutting or sawing with sharp knives is a common POM material processing method. To reduce the risk of deformation, ensure that the tool is sharp and the cutting speed is moderate. Too fast a cutting speed can lead to heat accumulation, which can cause material deformation.

Drilling: When drilling in the POM material, the appropriate bit type and speed should be selected. High-speed steel drill bits are recommended and drilled at a lower speed to avoid overheating and deformation. At the same time, regular cleaning of drilling cuttings is also an important measure to prevent deformation.

Milling: Milling is another commonly used POM material processing method. In order to obtain the best machining results, the appropriate milling cutter type and cutting parameters should be selected. In general, carbide milling cutters are preferred because they have better wear resistance and cutting properties. In addition, reasonable cutting speed and feed rate are also the key to reduce deformation.

Thermoforming: For some complex shapes or structures, it may be necessary to use thermoforming technology. During the heating process, the temperature and time should be strictly controlled to avoid excessive softening or burning of the material.

CNC Plastic Parts Machining Post-Processing Options

01/

Sanding and polishing: After cnc machining, plastic parts May have rough edges, visible tool marks, or burrs. Sanding deburrs the part, smooths the surface, and removes imperfections. Different grits of sandpaper, from coarse to fine, are progressively used to achieve the desired finish.

02/

Bead blasting: This process uses fine beads (usually glass, plastic, or ceramic) propelled at high pressure to create a uniform, matte surface finish on cnc plastic parts. It smooths surfaces, deburrs parts, improves grip, and enhances aesthetics.

03/

Vapour polishing: Vapour polishing is a polishing technique that improves surface roughness and enhances clarity. The part is exposed to a solvent vapour, such as acetone, that slightly melts the part’s outermost surface, smoothing the surface and removing any machining marks.

04/

Annealing: Annealing is a heat treatment process that relieves internal stresses in the cnc plastic part that May have built up during cnc machining. Stress relief is particularly important for load-bearing or stressed parts, as it reduces the likelihood of cracking, warping, or dimensional instability during use.

05/

Colouring and coating: Plastics are usually dyed in specific colours during production to create coloured-through workpieces. However, machined cnc plastic parts, especially white ones, can be painted or dyed to improve appearance, change colour, or provide additional protection.

06/

Marking and texturing: Marking and texturing encompass various techniques to add visual features to cnc plastic parts. After cnc machining, machinists can add logos, labels, serial numbers, barcodes, or graphics to plastic parts using silk-screening, pad printing, and laser etching.

Packing and Shipping of CNC Plastic Parts

Packing	Wooden box.
Shipping	Shipped by road, sea, rail.
Payment Terms	50%T/T in advance, the balance before delivery; Western Union is acceptable, the best pay us by Alibaba Assurance on line, that's an assurance for overseas customers.

FAQ

Q: Can you use a CNC machine on plastic?

A: Plenty of plastics are compatible with CNC machining, but six standard options are ABS, acrylic, nylon, HDPE, polypropylene and polycarbonate. ABS: ABS (Acrylonitrile Butadiene Styrene) is a popular general-use plastic with high impact strength and toughness.

Q: What is the best CNC plastic?

A: It is the best plastic for tight tolerance machining due to its high stiffness and rigidity, making it an excellent choice for CNC plastic machining parts.

Q: What is CNC plastic machining?

A: Plastic CNC machining is a subtractive manufacturing process in which a solid block of plastic is placed against a moving cutting tool that removes material from the block.

Q: Can CNC cut plastic?

A: Both cnc router and laser cutter can cut plastic sheet at high precision and high speed. Just attention that adopting proper bits, or laser power, speed for perfect cutting result. If you need cut thick plastic sheet, then water jet cutter is good option.

Q: Is HDPE good for machining?

A: High-density polyethylene (HDPE) is an engineering plastic with high strength-to-density due to its linear polymer chains and density, which ranges from 0.93 to 0.97 g/cm³. The HDPE form is known for being economical, machinable, and weldable, with an excellent strength-to-ductility balance.

Q: Can a CNC machine cut HDPE?

A: The answer is yes, HDPE can be CNC milled using computer-controlled machines that can turn raw materials into finished products. CNC milling can produce high-quality and consistent HDPE parts with better speed and flexibility than other methods.

Q: Can polycarbonate be CNC cut?

A: Acrylic, also known as plexiglass or polymethyl methacrylate (PMMA), and polycarbonate are both lightweight, transparent plastics suitable for manufacturing parts via CNC machining.

As one of the most professional CNC plastic parts manufacturers and suppliers in China, we're featured by cheap products and good service. Please rest assured to buy customized CNC plastic parts from our factory. For free sample, contact us now.

Delrin CNC Machining, Custom Precision CNC Machined Plastic Parts, CNC Plastic Prototype